八年级英语下第5单元语法过去进行时

PastProgressiveTense过去进行时•过去进行时的概念：•过去进行时的结构：•现在分词的构成：•过去进行时的用法：•一般过去时与过去进行时的区别：•when与while的区别：目标Goals基本概念：过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。结构•现在分词的构成•1)一般动词在词尾加-ing,读[iη],如go-going。•2)以不发音字母e结尾的动词,先去掉e,再加-ing。•come-coming•make-making•write-writing•3)以重读闭音节结尾的动词,如果末尾以一个辅音字母结尾,应先双写这个字母,再加ing,x和w结尾的除外。•如:get-getting•swim-swimming•show-showing•4)以字母y结尾的单词,直接加ing。•如carrying、playing、studying。•5)以字母ie结尾的动词,变ie为y,再加ing。•die→dyinglie→lying用法1.过去进行时表示过去某段时间内持续进行的动作或者事情。常用的时间状语thismorning,thewholemorning,alldayyesterday,fromninetotenlastevening,when,while如：WewerewatchingTVfromseventoninelastnight.昨天晚上七点到九点的时候我们在看电视。2.过去进行时可以表示在过去某个时间点发生的事情。时间点可以用介词短语、副词或从句来表示。如：Whatwasshedoingatnineo'clockyesterday?昨天晚上九点她在做什么？(介词短语表示时间点)3.在复合句中，如果主要动作和背景动作都是延续的或同时发生的，那么主从句的动词都可用过去进行时。例如：Whilehewaswaitingforthebus,hewasreadinganewspaper.他边等车边看报。(两个动作都是延续的)HewascleaninghiscarwhileIwascooking.他擦车时我在做饭。(两个动作同时进行)4、表示在过去即将发生的动作。如：Sheaskedhimwhetherhewascomingbackforsupper.5、表示过去的反复性或习惯性的动作，常与副词always,constantly（不断地）,continually（频繁地）,frequently等连用，常常带有说话人的某种感情色彩。如：Hismotherwasalwaysworkinglikethat.他妈妈总是那样工作。6.通常不能用于过去进行时的动词主要有：表示感觉或感情的词，如：hear,see,smell,taste,feel,seem,notice,hate,love,like,want,wish,refuse,prefer,forgive等。表示存在或所属的词，如：exist,stay,remain,obtain,have,own,form,contain等。表示认识或理解的词，如：understand,know,remember,forget,believe,think,doubt等。有些表感觉，感情，情绪，精神活动，所属关系等的动词，一般不用于进行时态，常见的这类动词有：understand,remember,wonder,cost,have,exist,care,desire,hate,like,love,want,know,hope,wish,agree,believe,think(认为),dependon,belongto......例如：误：Iwasknowingtheanswer.正：Iknewtheanswer.我知道答案。误：Iwasn'tunderstandinghim.正：Ididn'tunderstandhim.我不明白他的意思。一般过去时与过去进行时的区别1、一般过时往往表示某一动作已经完成，而过去进行时却表示动作在持续或未完成。比较：Shewrotealettertoherfriendlastnight.她昨晚给朋友写了封信。(信写完了)Shewaswritingalettertoherfriendlastnight.她昨晚一直在给朋友写信。(信不一定写完)2、一般过去时表示只做一次动作，而过去进行时却表示动作反复地进行。如：Shewavedtome.她朝我挥了挥手。Shewaswavingtome.她一直朝我挥手。when和while的用法区别两者的区别如下：①when是atorduringthetimethat,既指时间点，也可指一段时间；while是duringthetimethat，只指一段时间，因此when引导的时间状语从句中的动词可以是终止性动词，也可以是延续性动词，而while从句中的动词必须是延续性动词。②when说明从句的动作和主句的动作可以是同时，也可以是先后发生；while则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。③由when引导的时间状语从句，主句用过去进行时，从句应用一般过去时；如果从句和主句的动作同时发生，两句都用过去进行时的时候，多用while引导。如：a.Whentheteachercamein,weweretalking.当此句改变主从句的位置时，则为：Whileweweretalking,theteachercamein.b.Theyweresingingwhileweweredancing.Exercises1.He____________(notwork)atthattime.2.Whentheteacher_____(come)in,they_________(talk)loudly.3.What_____you______(read)lastnight?wasn'tworkingcameweretalkingwerereadingdidread4.Hismother_______(return)whilehe_________(do)hishomework.5.Myfather___________(watch)TVwhilemymother_________(cook).returnedwasdoingwaswatchingwascooking用动词的适当形式填空(一般现在时、过去时、将来时、现在进行时、过去进行时）1.She__________(do)herhomeworkthistimeyesterday.2.Theteacher_________(help)hisstudentswiththeirlessonsnow.3.He__________(make)progresseveryday.4.She_____________(read)astory-bookatsevenyesterdayevening.5.It____________(rain)hardnow.6.Thestudents_________(get)readyforthepicnicthesedays.wasdoingishelpingmakeswasreadingisrainingaregetting7.They_________(visit)thesciencemuseumnextMonday.8.Look,they__________(play)videogames.9.We__________(do)somecleaningatthattime.10.______thestudents_____(like)learningEnglish?11._____you______(have)agoodtimelastSunday?willvisitareplayingweredoingDolikeDidhave12.____he________(study)Englishfrom7to9lastnight?13.Listen,she________(sing).14.He________________(notwork)inthefactorythesedays.15.It’seighto’clock.Thestudents_____________(have)anEnglishlesson.Wasstudyingissingingisn’tworkingarehaving单项选择题1.Mybrother___whilehe___hisbicycleandhurthimself.A.fell,wasridingB.fell,wereridingC.hadfallen,rodeD.hadfallen,wasriding2.Tom___intothehousewhennoone___.A.slipped,waslookingB.hadslipped,lookedC.slipped,hadlookedD.wasslipping,looked3.ThelasttimeI__Janeshe___cottoninthefields.A.hadseen,waspickingB.saw,pickedC.hadseen,pickedD.saw,waspicking4.Idon’tthinkJimsawme;he___intospace.A.juststaredB.wasjuststaringC.hasjuststaredD.hadjuststared5.IfirstmetLisathreeyearsago.She___ataradioshopatthetime.A.hasworkedB.wasworkingC.hadbeenworkingD.hadworked6.---Hey,lookwhereyouaregoing!---Oh,I’mterriblysorry.________.A.I’mnotnoticingB.Iwasn’tnoticingC.Ihaven’tnoticedD.Ididn’tnotice7.ThereportersaidthattheUFO___easttowestwhenhesawit.A.wastravelingB.traveledC.hadbeentravelingD.wastotravel8.I___mybreakfastwhenthemorningpostcame.A.hadB.hadbeenhavingC.havebeenhavingD.washaving填入以下单词的正确形式1.Itwaswarm,soI________offmycoat(take).2.John_________(take)aphotographofmewhileI__________(not/look).3.Jane______________________(wait)formewhenI__________(arrive).4.WhenIwasyoung,I____________(want)tobeabusdriver.5.MybrothercameintothebedroomwhileI___________(dance).6.________he__________(lie)onthegroundatnineyesterdayevening?7.What__________Jim__________(write)whentheteachercamein?8.TheReads__________(nothave)lunchwhenIgottotheirhouse.9.MikeandI________(play)basketballatthattimeyesterdayafternoon.按要求转换下列句型。1.WewerehavingaPEclassatfouryesterdayafternoon.（改为否定句）We____________aPEclassatfouryesterdayafternoon.2.K